[roll third_party/pigweed] pw_trace_tokenized: Add DeringAndViewRawBuffer

Provide a ConstByteSpan of the ring buffer data to support
bulk access for large transfers.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/58160

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 2a70d8f6e5c4d87..2489aa67604e079
Roller-URL: https://ci.chromium.org/b/8836702873722640241
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8836702873722640241
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iaabf39934ec284dde4351c4e001983f5988bbaba
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/60023
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 2a70d8f..2489aa6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 2a70d8f6e5c4d87d23629423e01543b386467f92
+Subproject commit 2489aa67604e079d740a336e148f5ddfc980ce21